Ais an n×n matrix. check the true statements below: a. to find the eigenvalues of a, reduce a to echelon form. b. a matrix a is not invertible if and only if 0 is an eigenvalue of a. c. a number c is an eigenvalue of a if and only if the equation (a−ci)x=0 has a nontrivial solution x. d. if ax=λx for some vector x, then λ is an eigenvalue of a. e. finding an eigenvector of a might be difficult, but checking whether a given vector is in fact an eigenvector is easy.

explanation:

remove parenthesis:

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apply rule

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multiply fractions:

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divide:

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mordancy.

step-by-step explanation:

at each of the parallel lines adjacent angles are supplementary. the angles have special names identifying their positions with respect to the parallel lines and transversal. they are corresponding angles, alternate interior angles, or alternate exterior angles. an angles is congruent to its matched angle.

b and c are the correct answers.

good luck on the quiz! : d